11431240113 has 16 divisors (see below), whose sum is σ = 16143684480. Its totient is φ = 7170114816.

The previous prime is 11431240081. The next prime is 11431240151. The reversal of 11431240113 is 31104213411.

11431240113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11431240113 - 2⁵ = 11431240081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11431240113.

It is not an unprimeable number, because it can be changed into a prime (11431240153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120631 + ... + 193427.

It is an arithmetic number, because the mean of its divisors is an integer number (1008980280).

Almost surely, 2^11431240113 is an apocalyptic number.

It is an amenable number.

11431240113 is a deficient number, since it is larger than the sum of its proper divisors (4712444367).

11431240113 is a wasteful number, since it uses less digits than its factorization.

11431240113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75896.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11431240113 its reverse (31104213411), we get a palindrome (42535453524).

The spelling of 11431240113 in words is "eleven billion, four hundred thirty-one million, two hundred forty thousand, one hundred thirteen".